ES287018U - Piezoelectric ignition device (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Piezoelectric ignition device, of the type comprising a tubular sheath (3) mounted with axial mobility between two extreme positions, exit and reentry respectively, in a tubular body (2) closed by a bottom (2a) in one of its ends; this tubular sheath (3) contains, starting from its outer end, an anvil (4), of electrically conductive material, a piezoelectric element (5) and a cylindrical element (6) that forms a stop, also of conductive material of the electricity; these three (9), in order to hit against the re-entry stroke of the stroke part, organs (4, 5, 6) are axially attached to the sheath (3) when they are pressed axially against each other; a firing pin (8) is provided, associated with spring-loaded means (9) associated with the firing pin, while other spring means (11) normally tend to return the cover (3) to its extreme exit position and to keep it therein ; characterized in that the transverse internal dimensions of the sheath (3) are slightly inferior to the transverse dimensions of the stop (6), the piezoelectric element (5) and the anvil (4), so that its axial fixation in the sheath (3) it is secured by simple narrowing or radial constriction, which is used to cause its placing under axial pressure. (Machine-translation by Google Translate, not legally binding)